Allocapnia maria Hanson, 1942

Stark, Bill P. & Kondratieff, Boris C., 2012, Epiproct And Dorsal Process Structure In The Allocapnia Forbesi Frison, A. Pygmaea (Burmeister), And A. Rickeri Frison Species Groups (Plecoptera: Capniidae), And Inclusion Of A. Minima (Newport) In A New Species Group, Illiesia 8 (5), pp. 45-77 : 50

Allocapnia maria Hanson

( Figs. 19-24 )

Allocapnia maria Hanson 1942:81 .

Holotype ♂ (United States National Museum of Natural History), East Amherst [Hampshire Co.], Massachusetts

Allocapnia maria: Ross & Ricker, 1971:37 .

Material examined. Virginia: Giles Co., Stony Creek, CR 635, north of Goldband , 25 February 2001, B.C. Kondratieff, R.F. Kirchner, R.E. Zuellig, 13♂, 1♀ ( CSUC). Smyth Co., Lick Creek, Rt 621, 14 February 1982, B.C. Kondratieff, 5♂ ( CSUC). Wythe Co. , Stoney Fork Reed Creek , Dark Horse Hollow , Hwy 52, 26 February 1999, B.C. Kondratieff, R.F. Kirchner, 23♂, 4♀ ( CSUC) .

Male epiproct. Apical segment of upper limb ca. 210 μm long, bearing a pair of basolateral ear- like projections and a dense median patch of wave-like spikes ( Figs. 19-22 ). Median spike patch ca. 200 μm long and separated along entire length by narrow groove ( Fig. 20 ), ear-like projections without spikes. Apical segment ca. 161 μm wide across ear- like projections and narrowed to ca. 47 μm at apex. Basal segment of upper limb ca. 344 μm long and ca. 78 μm wide at midlength; apical third of basal segment bearing a sparse patch of setae; median field of basal half with wide groove ( Fig. 19 ). Lower limb ca. 172 μm wide proximal to apical spoon.

Male tergal process. Prominent raised structures on abdominal terga 7 and 8 ( Figs. 22-24 ). Process of tergum 7 conical, apex without scale-like structures ( Fig. 23 ); process of tergum 8 thin in lateral aspect ( Fig. 22 ), dorsal surface truncate, or slightly concave, and bearing a pair of dorsolateral patches of scalelike structures ( Fig. 24 ). Width of tergum 8 process ca. 100 μm.

Figures

Figs. 19-24. Allocapnia maria, Dark Horse Hollow, Wythe Co., Virginia. 19. Male terminalia, dorsal. 20. Apical segment upper limb of epiproct, dorsal. 21. Surface detail apical segment upper limb of epiproct, dorsal. 22. Epiproct apex and 8th tergal process, lateral. 23. Abdominal tergal lobes, dorsal. 24. 8th abdominal tergal lobe, anterodorsal.